How to find the Rate of Change?

Question

baldymcgee6 · Answer

Rate of change is the slope at a certain point, P(x,y)

baldymcgee6 · Answer

There is a slope formula you can use

anonymous · Answer

how?

anonymous · Answer

what's the formula?

anonymous · Answer

like if they give me a table with the amount of minutes/time and calories burned? for example

anonymous · Answer

???

amistre64 · Answer

for a given time interval, it would most likely be; the change in calories divided by the change in time.

anonymous · Answer

thnk u! (: so you divide what u already have?

anonymous · Answer

find the rate of change in calories burned with respect to time. time (minutes) 40,60,0  
Calories Burned- 500,750,1000

amistre64 · Answer

im not sure what you mean by "already have"

spose you take 2 points of reference of the form 
(time,calorie):  call them $(t_1,c_1) ~and~ (t_2,c_2)$

it shouldnt matter which reference points you pick since they should all be on the same line to begin with

the rate of change, is the slope between the 2 points:$$\Large\frac{c_2-c_1}{t_2-t_1}$$

amistre64 · Answer

time (minutes)     40,  60,      0  ; zero ???
Calories Burned- 500,750,1000

amistre64 · Answer

is that last time value 80 by chance?

anonymous · Answer

it's 0

anonymous · Answer

oh so it's like finding the slope basically

amistre64 · Answer

yes, finding the slope between 2 reference points

anonymous · Answer

ahhh i see xD thnk u so much! i am ready for my test now woohooo

amistre64 · Answer

good luck :)